China 2023-7 The 50th Anniversary of China-Spain diplomatic relationships 2v imprint flamingo and red-crowned crane

https://www.delcampe.net/en_US/collectibles/stamps/china/1949-people-s-republic/2020/unused-stamps/china-2023-7-the-50th-anniversary-of-china-spain-diplomatic-relationships-2v-imprint-flamingo-and-red-crowned-crane-1776151693.html